On Matt Harvey’s final pitch of the first inning, the Mets’ young ace struck out Atlanta’s Jason Heyward with a blazing fastball that touched 100 mph on the radar gun.

It was going to be that kind of day for Harvey, and the Braves batters.

The New York righthander was dominant against the team with a 7 ½-game in the National League East; he carried a no-hitter into the seventh inning. He struck out at least one batter each frame, and retired the side on strikes in the fourth inning.

By the time the rest of the country caught on to the happenings at Atlanta’s Turner Field Tuesday afternoon, Harvey was turning in one of the best pitching performances of the season. Which is why it’s so disappointing that his no-hit bid ended the way it did.

Heyward led off the seventh inning with an awkward swing—there were very few clean cuts on this day from the Braves—on an 87-mph changeup that produced a tapper down the first-base line. Harvey raced over, fielded the ball and flipped it to first baseman Lucas Duda. Or, at least, where Lucas Duda should have been.

This was just Duda’s second start of the year at first base—he started only four of 121 games there last season—and his inexperience with the position was obvious. He’d drifted over to field the ball, and didn’t react soon enough when it became clear Harvey was going to get there first.

So when Harvey made the perfect toss to the first-base bag, there was nobody there, save for first base umpire Chad Fairchild, who had to jump out of the baseball’s path.

Heyward slid into first, raising a pile of dust that was impressive but unnecessary. He was safe, and the official scorer had no choice but to grant Heyward a base hit. There are no errors given for mental mistakes, unfortunately for Harvey.